We need to print a sign and mount it on the back side of a piece of acrylic. We are going to use double sided adhesive to attach it. So people will be viewing this through the lexan and through the double sided adhesive. Do I need to use optically clear or will clear work ok? I know using laminate that isn't optically clear works just fine, so I wondered about this case. They are going to be using this in a planning room and this is a rough drawing of the facility. Basically just a bunch of lines, boxes and wording.